Forum Discussion

burlmart's avatar
burlmart
Explorer
Apr 19, 2014

Do all size 78 engine batteries mount identically at base?

Our MH is over 9 years old and its original AC Delco size 78 side terminals batt has been on life support for some time now. Overnite shore charging before a trip allow it to start engine and even do...
Class C
Matt_Colie's avatar
Matt_Colie
Explorer II
Apr 20, 2014
The short answer is - YES.

A complete answer follows.
Vehicle batteries are described by an SAE group number. For a battery to be sold as that group (like 78), it has to able to be installed and retained as that group number describes. If a battery is listed as more than one group, it must be capable of meeting all the criteria of all the groups it claims to fit.

Matt

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